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5841b2f6a4
... so that all of 'exit', '_exit', '_Exit' work. 'exit' thus becomes the standard 'newlib/libc/stdlib/exit.c' -- and functions registered via 'atexit' are now called at return from 'main' or manual 'exit' invocation.
33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
/*
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* Support file for nvptx in newlib.
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* Copyright (c) 2014-2018 Mentor Graphics.
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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*/
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#include <unistd.h>
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/* Sadly, PTX doesn't support weak declarations, only weak
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definitions. Weakly define it here in case we're not using crt0
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(for instance in offloading). You probably shouldn't be calling
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'exit' in an offloaded region anyway, but that'd be a runtime
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error, not a link error. */
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int *__attribute((weak)) __exitval_ptr;
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void __attribute__((noreturn))
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_exit (int status)
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{
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if (__exitval_ptr)
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*__exitval_ptr = status;
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for (;;)
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asm ("exit;" ::: "memory");
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}
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